# EMT Quiz Prep vs VentRef

The clearest difference is price: VentRef at Free against EMT Quiz Prep's $2.99. VentRef also leads on update cadence (every 3 weeks vs every 13 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

VentRef is free to download; EMT Quiz Prep costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EMT Quiz Prep ships an update every 13 months, VentRef every 3 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | EMT Quiz Prep | VentRef |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (44 ratings)](https://appshunter.io/ios/app/ventref/id6756503414/reviews)** |
| Number of ratings | — | **44** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 2 MB | 27 MB |
| Requires iOS | 26.1 | **26.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Tracy Gates](https://appshunter.io/developer/1065459770) | [Rishi Kumar](https://appshunter.io/developer/1434016052) |

## What reviewers say

### EMT Quiz Prep

[App page](https://appshunter.io/ios/app/emt-quiz-prep/id1455223997)

**In-app purchases:** none


### VentRef

[App page](https://appshunter.io/ios/app/ventref/id6756503414)

A clinical reference tool for healthcare professionals managing mechanical ventilation and oxygen therapy. It provides information grounded in respiratory physiology and evidence-based critical care.

**Highlights:** Mechanical ventilation reference, Oxygen therapy reference, Respiratory physiology, Evidence-based critical care, Clinical decision support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EMT Quiz Prep free?

EMT Quiz Prep costs $2.99, with no in-app purchases.

### Is VentRef free?

VentRef is free to download, with no in-app purchases.

### Do EMT Quiz Prep or VentRef have ads?

Neither EMT Quiz Prep nor VentRef shows ads.

### Which is updated more often, EMT Quiz Prep or VentRef?

EMT Quiz Prep ships an update every 13 months, and VentRef every 3 weeks. Most recently, EMT Quiz Prep was updated on October 3, 2026 and VentRef on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*